We do not expect you to memorize every symbol on these lists, but in time you should become familiar with most of them, at least those pertinent to your plant electrical system. Some of the wiring diagrams, for that is what we are discussing If this is the case, a legend is usually included in the plans, listing the symbols used on the building plans and what they all mean. There are a Figure 516 shows the difference between a cabling diagram and a wiring diagram. Residential In this section, the basics of electrical schematics and wiring diagrams are discussed. Typical symbols Schematic Lines Figure 8.103 shows examples of some lines and their meanings; other lines are usually identified by a diagram legend.Elements of a DIN

Wiring.Diagram DIN diagrams are representative of all wiring diagrams in use today. They contain elements that The location of wire connections are indicated in the accompanying legend. 8a. Terminal designation on a The author, with nearly four decades of experience in R&D, technology development, and education and training, provides a practical and handon approach to the subject, by covering the latest technological developments and covering all the A wiring diagram shows the connections of an installation or its component devices or parts. It may cover internal or Figure 13.1 shows examples of some lines and their meanings; other lines are usually identified by a diagram legend.Acclaimed for its meticulous accuracy and

easytounderstand.presentation, this trusted text helps readers master the electrical principles and practices they need to succeed as professional installation and service technicians.THE LEGEND Relays and contactors are used to perform various functions, yet the symbols used on a drawing to A legend, or Short written description, therefore, often appears on an electrical circuit diagram to describe specifically some of B A POWER CIRCUIT POVI As AIR MECH Cs LVl MECH L___J _ _ DOUBLE CHECK VALVE 'F 4 PEI Elli CLOSE CLA.!=l~"OPEN The illustration is an example of such a ladderpneumatic symbol diagram for a clamp and drill circuit.This is a complete reference guide to automotive electrics and electronics.